I don't know if this was covered before but this is what I did. Instead of buying a whole new A/C tensioner assembly because mine was making noise. I just removed the pulley itself leaving the bracket attached to the engine. Heated the PULLEY around the bearing SLIGHTLY and put a big enough socket on the underside to catch the bearing and support the pulley. Then GENTLY tapped the bearing out with a smaller socket on top. The bearing is a 6203 for my 92' and can be bought at a bearing supply or at your local Japanese motorcycle shop where I got mine for $4. Be careful not to heat the pulley too much or pound on it excessively. A minute with the propane torch and a few small taps and it will come right out. Reheat the pulley to install the new cold bearing and reassemble and you just saved yourself some money. Set the belt tension and go.